127976773 has 4 divisors (see below), whose sum is σ = 132105088. Its totient is φ = 123848460.

The previous prime is 127976741. The next prime is 127976777. The reversal of 127976773 is 377679721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 377679721 = 613 ⋅616117.

It is a cyclic number.

It is not a de Polignac number, because 127976773 - 2⁵ = 127976741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127976777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2064111 + ... + 2064172.

It is an arithmetic number, because the mean of its divisors is an integer number (33026272).

Almost surely, 2^127976773 is an apocalyptic number.

It is an amenable number.

127976773 is a deficient number, since it is larger than the sum of its proper divisors (4128315).

127976773 is an equidigital number, since it uses as much as digits as its factorization.

127976773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4128314.

The product of its digits is 777924, while the sum is 49.

The square root of 127976773 is about 11312.6819543378. The cubic root of 127976773 is about 503.9379345866.

The spelling of 127976773 in words is "one hundred twenty-seven million, nine hundred seventy-six thousand, seven hundred seventy-three".